Dia: Learn Languages with AI

What you can do

• Use voice messages, text or a real-time call for conversational practice
• Review short corrections, translations and pronunciation/romanization tips
• Save words and phrases, then return for spoken review
• Choose a scenario, tutor voice and language/regional option

Rehearse a situation and keep a useful phrase

Choose the target language and describe a situation such as ordering coffee. Reply by voice or text, inspect the correction and save a useful word or phrase for review. Calls provide live speaking practice with optional captions, while the word bank offers a way to revisit material outside the original chat.

The store describes 28 languages with 42 language/regional options. Its exam/interview examples are practice scenarios, not official mock exams or certified scores.

Compare message and call allowances separately

A free account includes 10 messages and two call minutes each day. Premium removes the daily message cap but includes ten call minutes per day. New accounts receive a 24-hour Premium experience with ten call minutes in total; the description says it does not turn into a paid plan. Guidebooks remain free on every plan.

The US purchase list contains several Premium, challenge and diamond products with different names, including $7.99 Premium Access and $6.99 weekly/one-month entries. Listing them is not confirmation that every user can buy them now. Review the actual duration, renewal and included call access before purchasing.

Current version and editorial basis

Version 2.3.4 was released November 6 and requires iOS/iPadOS 15 or later. Release notes describe voice samples, additional Premium voices, updated tutor portraits and a clearer saved-word view. Official site and US App Store were checked November 8, 2026; official screenshots illustrate examples. No recognition, correction, payment or learning-outcome test was performed.

Limitations & considerations

• A free account is required for chat. Free access includes 10 messages and 2 call minutes per day; Premium includes 10 daily call minutes, not unlimited calls.
• The 24-hour new-account Premium experience includes 10 call minutes in total and does not convert to a paid subscription.
• The US list includes $7.99 Premium Access, $6.99 weekly and $6.99 one-month items, challenges and a diamond pack; current availability and the relationship between these SKUs are not established.
• Speech recognition, correction quality, live-call latency and learning outcomes were not tested.

Privacy & permissions

The November 7 policy says account details, messages, generated audio and preferences are stored or processed to provide the tutor, using named AI/authentication providers. Account-linked operational events may be collected.

Advertising measurement and consent differ between the website, Android web wrapper and newer iPhone versions. Deletion has stated exceptions; this guide has not audited retention or account deletion.

Use it for